National Weather Service

Watches, Warnings & Advisories
NWS Homepage

One product issued by NWS for: Yakima WA
Share |

Hydrologic Outlook

Hydrologic Outlook

Hydrologic Outlook
National Weather Service Pendleton OR
200 PM PDT Mon Mar 27 2017

...Rain and higher elevation snow melt may cause localized
flooding issues later this week....

Small stream flooding may develop or increase this week as a storm
system brings warmer air and periods of rain to the region
Tuesday night through Wednesday night. This will be followed by
mainly dry weather and near normal temperatures Thursday and
Friday. Overnight lows will dip into the 20s and lower 30s toward
the end of the week, which should help to at least slow the snow
melt some.

Moderate rainfall will likely lead to an increase of ponding of
water and higher flows on smaller rivers and streams that
originate in the higher terrain around the Kittitas and Yakima
Valleys. Precipitation amounts through Thursday morning are
expected to range from 1 to 2 inches along the Cascade Crest, with
half an inch to one inch along the East Slopes of the Cascades. A
quarter to half inch of precipitation is expected in the Simcoe
Highlands. Rainfall amounts in the Yakima and Kittitas Valley
will likely remain under two tenths of an inch for the entire
event. Snow levels start out between 4000 to 5500 feet Tuesday
night and Wednesday before falling back to near 3000 feet Thursday

Streams will remain high through the week as increased snowmelt
is seen with the warmer temperatures at the end of the week.

River rises on mainstem rivers will also be seen, but no flooding
is expected on the mainstem rivers at this time.

Residents are encouraged to monitor this weather situation for
updates, watches or warnings. People who live along streams or
rivers should monitor water levels closely.


U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE